Sash lock



Dec. 19, 1922. 1,439,642.

\ e. ROUND.

sAsH LOCK.

FILE-D OCT. I. 1921.

WITNESSES 6150126: 720 VII/.0

Patented Dec. 19, 1922.

- s'rares PATNr 1,439,642 FEM;

enonen ROUND, 'or momma, NEW roan.

SASH LOCK.

Application filedOctober 1, 1921. Serial 110.50%,715.

T 0 (LE whom it may concern: Beit known that I, Gnonen Roman, acltizen of the United States, and a I'BSlClQIltO'f the city of New York, borough of Brooklyn,

in the county of Kings and State of New York, have invented a new and Improved Sash Look, of which the, following is a full, clear, and exact description.-

This invention relates to improvements in sash locks, an object of the invention which is burglar-proof, which can be manufactured and sold at a reasonably low price, and which will most efficiently perform the functions for which it is intended.

lVith these and other objects in view the invention consists in certain novel features of construction, and combinations and ar- Figure 4c is an end view of the sash lock.

Figure 5 is a. view in. side elevation of my sash lock detached.

1 represents a window frame and 2, 3 and 4 are the ordinary beads of the window frame between which the upper and lower sashes 5 and 6 are mounted to slide.

My improved sash lock 7 is secured on the meeting rail 8 of the lower sash 6 and a keeper 9 is secured on the meeting rail 10 of the upper sash, which is the customary location for sash locks and keepers in general use.

My improved sash lock embodies a base 11, which is preferably securedby screws 12 to the meeting railS, and this base supports at an elevation therefrom a cylindrical casing or barrel 13. I preferably construct the barrel and base of a single sheet of metal bent centrally forming the barrel 13, then bent together forming a standard .or ,up- I.

right web 14:, then bent outwardly at right angles forming the base ll.

The keeper 9is preferably made in similar fashion, having, an upper cylindrical portion 15,-a web 16and a base 1'7, the I latter secured to the meeting rail 10 of the upper sash 5 preferably by means of screws 18. I

In the barrel 13 of the sash look I provide a locking bolt 19, which is preferably of cylindrical form and fits the. barrel or casing 13. This barrel or casing13 has a cam slot 20 therein, through which an operating arm or finger 21 on the bolt 19 is proected, so that by moving the finger 21 in the cam sloot 20, a longitudinal movement is imparted to the bolt 19.

The bolt 19 at its inner or forward end is reduced in diameter as shown at 22, forming an annular shoulder 23 on the bolt. This smaller end 22 of the bolt fits within the cylindrical portion 15 of the keeper 9, it being understood that the cylindrical portion 15 of the keeper 9 is of appreciably less diameter than the bolt receiving cylindrical portion 13, so that when the bolt is projected forwardly, its smaller end 22 will project into the keeper and form an effective lock holding the sashes against independent movement. A continued forward movement of the bolt 19 will cause the shoulder 23 of said bolt to en gage the edge of the keeper 9 and exert a pressure tending to force thesashes apart and jam or press the faces of said sashes against the heads 2 and 4 respectively to prevent rattling.

Applicant is aware that this extreme forward movement of the bolt in its function as an anti-rattlertends to force the meeting rails of the sashes apart, but this separation will be slight and in many cases will be advantageous because of improved ventilatlon and at the same time securely locking the sashes and preventing rattling thereof. To prevent accidental longitudinal movement of the bolt 19, the extreme ends of the cam slots 20 are at right angles to the base 11, asshown at 24, so that when the finger 21 is forced into an extreme end of a slot, it will act as a positive lock against longi tudinal movement of the bolt.

Various slight changes might be made in the general form and arrangement of the parts described without departing from the invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the appended claims.

I claim l. A sash lock, comprising a casing, a keeper, a bolt slidable longitudinally of the casing and having a reduced end movable into the keeper, said, bolt having a shoulder atthe base of said reduced end adapted to engage the keeper and tend to force the casing and the keeper apart when the bolt is moved in one direction, said casing having a cam slot therein, and a finger on the bolt movable in the cam slot to impart longitudinal movement to the bolt.

A. sash lock, comprising a bolt casing and a keeper, said casing and keeper each composed of sheet metal bent forming aligned bolt receiving casings, upright Webs and bases at the lower ends of the Webs, a bolt movable in the bolt casing and having a reduced end fitting. Within the keeper casing, a shoulder on the bolt adapted to engage the end of the keeper casing, said bolt casing having a cam slot, and a linger on the bolt movable in the cam slot to impart longitudinal movement to the bolt.

3. The combination with a pair of vertically sliding sashes, of a bolt casing on the meeting rail of the lower sash, and a keeper on the meeting rail of the upper sash, a longitudinally movable bolt in the bolt casing, a reduced end on said bolt movable into the keeper, a shoulder on the bolt adapted to engage the edge of the keeper, and means for imparting longitudinal movement to the bolt whereby the reduced end of the bolt locks in the keeper and the shoulder of the bolt functions to "force the sashes apart whereby rattling of the sashes is prevented.

GEORGE ROUND. 

